- All sections
- C - Chemistrymetallurgy
- C25B - Electrolytic or electrophoretic processes for the production of compounds or non- metalsapparatus therefor
- C25B 13/02 - DiaphragmsSpacing elements characterised by shape or form
Patent holdings for IPC class C25B 13/02
Total number of patents in this class: 859
10-year publication summary
|
29
|
24
|
22
|
33
|
35
|
49
|
87
|
112
|
166
|
192
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Asahi Kasei Kabushiki Kaisha | 2876 |
40 |
| Reinz-Dichtungs-GmbH | 282 |
32 |
| LG Chem, Ltd. | 17997 |
30 |
| Agfa-Gevaert | 296 |
22 |
| Toshiba Corporation | 12754 |
17 |
| Toray Industries, Inc. | 7167 |
17 |
| Samsung Electro-mechanics Co., Ltd. | 6196 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 34685 |
16 |
| de Nora Permelec Ltd | 166 |
13 |
| Robert Bosch GmbH | 44427 |
12 |
| Uop LLC | 4411 |
11 |
| Kolon Industries, Inc. | 1863 |
11 |
| Tokuyama Corporation | 1508 |
11 |
| Twelve Benefit Corporation | 148 |
11 |
| Johnson Matthey Hydrogen Technologies Limited | 169 |
11 |
| FUJIFILM Corporation | 30849 |
10 |
| NGK Insulators, Ltd. | 5169 |
10 |
| Agc, Inc. | 5686 |
10 |
| Hysata Pty Ltd | 47 |
10 |
| Kyocera Corporation | 14521 |
9 |
| Other owners | 540 |